JP2003286938A - Wind power generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generator using a multi-pole induction power generator as a power generator capable of reducing wind pressure load, and simplifying a tower. <P>SOLUTION: A horizontal shaft type windmill is installed on an upper part of the tower that is vertically erected. The power generator is provided at a desired position in the tower in such a way that a windmill shaft of the horizontal shaft type windmill crosses a rotor shaft of the power generator. The windmill shaft and the rotor shaft are coupled with each other through a bevel gear. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine generator in which a wind turbine rotates a generator to generate electric power.

[0002]

2. Description of the Related Art A wind turbine generator is configured to convert kinetic energy of wind blowing on the ground surface into rotational energy by a wind turbine, rotate a generator, and transmit generated electric power to a power system.

FIG. 9 is a configuration diagram showing a conventional wind turbine generator, (a) is an external view and (b) is a side view showing a part of the wind power generator. In FIG. 9, a wind turbine generator 1 includes a tower 2 vertically built from a foundation, a nacelle 3 installed at the top of the tower 2 to accommodate a generator 6, and attached to a side surface of the nacelle 3. It is roughly divided into the elements of the propeller-type wind turbine 4 which is a horizontal shaft type wind turbine. The place where the tower is built is generally on the ground, and the foundation part is called the above-ground part.

In the nacelle 3, the blade shaft 4-1 for fixing the blades of the wind turbine 4 is connected to the induction generator 6 via the speed increasing gear 5, and when the wind turbine 4 receives wind force and rotates, the rotor shaft increases. The speed gear 5 accelerates to rotate the induction generator 6. Reference numeral 7 is a cooling fan of the generator.

The rated speed of the induction generator 6 is usually 1,
Although it is about 200 (rpm), since the rotation speed of the wind turbine 4 is lower than this, the speed increasing gear 5 increases the speed to the rated rotation speed.

The AC power output from the induction generator 6 is guided to the ground by a power cable 8 passing through the tower 2 and supplied to the power system 10 via a transformer 9 such as a transformer or a switch. It has become.

FIG. 10 shows an example of a three-phase connection diagram for connecting the induction generator 6 and the electric power system 10 described with reference to FIG. In FIG. 10, 6-1 is a stator and 6-2 is a cage rotor. By rotating the cage rotor 6-2, three-phase AC power is generated in the stator 6-1. This 3
The phase AC power is output to the distribution line 11 that is linked to the power system 10 via the reactor 9-1, the switch 9-2, and the transformer 9-3.

FIG. 11 shows another example of a three-phase connection diagram for connecting the induction generator 6 and the power system 23. In FIG. 11, the three-phase AC power generated in the generator stator 6-2 is first converted into DC by the converter 9-4c of the static frequency converter 9-4, and then this DC is converted into a system by the inverter 9-4i. It is converted into synchronized alternating current and supplied to the distribution line 11 via the transformer 9-3.

In the conventional example shown in FIG. 11, since the output of the generator 6 is passed through the static frequency converter 9-4, the rotation speed of the generator rotor 6-2 varies depending on the rotation of the wind turbine. Even if it does, by performing gate control of the inverter 9-4i and linking with the power system 10 side at a constant frequency and voltage, voltage fluctuations to the power system,
The influence of frequency fluctuation can be reduced.

On the other hand, FIG. 12 shown below is a three-phase connection diagram when the permanent magnet type induction generator 12 is adopted. This generator 12 has a plurality of permanent magnets 1 with magnetic poles of different polarities N and S adjacent to each other on the outer peripheral surface of the rotor 12-2.
The permanent magnets 12-4 are arranged in a 2-4 arrangement and three-phase AC power is induced in the windings of the stator 12-1 by the rotation of the permanent magnets 12-4. In addition, 12-3 shows a rotor shaft. This 3-phase AC power is supplied to the power system 10 as an AC output synchronized with the system power by the static frequency converter 9-4 and is supplied to the power system 10.

However, the permanent magnet type induction generator 12 is
Since it does not require a field current to generate a field flux, it has less loss than a wire-wound rotor, and is more easily a multi-pole machine than a cage rotor. Therefore, there is an advantage that AC power close to the commercial frequency can be output by combining with a frequency converter even at a low rotation speed. Therefore, the example shown in FIG. 12 has an advantage that the speed increasing gear 5 can be omitted, and mechanical loss and operating noise due to the speed increasing gear 5 can be reduced. Figure 13
It is a figure which shows the external appearance of the permanent magnet type | mold multipolar generator of FIG. 12, and has shown the mode that the large induction generator 12 is attached to the front of the nacelle 3.

[0012]

As described above, in the multipolar generator, the reason is that the commercial frequency can be obtained even when the rated rotation speed of the wind turbine is low, and the cost of the frequency converter is suppressed. Since the rotor is multi-polarized as
The outer diameter of the generator 13 is inevitably large.

Therefore, as shown in FIG. 13, the multipolar generator 12
When the wind turbine 4 is mounted in a direction coinciding with the axis of the wind turbine 4, since the area of the generator portion that receives the wind is large, the wind pressure load is large, and the mechanical strength of the tower 2 must be designed correspondingly. It is an object of the present invention to obtain a wind turbine generator that employs a multi-pole induction generator and reduces the wind pressure load to simplify the tower.

[0014]

In order to achieve the object of the invention described above, the invention of a wind turbine generator according to claim 1 is a tower installed on a foundation part and a horizontal shaft installed on the upper part of the tower. Type wind turbine, a generator installed at an arbitrary position of the tower so that the axis of the horizontal axis type wind turbine and the rotor axis intersect, the axis of the horizontal axis type wind turbine and the rotor axis of the generator. It is characterized in that it is constituted by a power transmission means for connecting with.

Further, the invention of a wind turbine generator according to claim 2 is characterized in that the generator is a multi-pole generator having permanent magnets as field poles. The invention of the wind turbine generator according to claim 3 is characterized in that the power transmission means is constituted by a bevel gear.

The invention of a wind turbine generator according to claim 4 is characterized in that the generator is installed at a midpoint of the tower. The invention of a wind turbine generator according to claim 5 is
It is characterized in that the generator is installed at the foundation of the tower.

According to the first to fifth aspects of the invention, by disposing the permanent magnet type multipolar generator in the axial direction intersecting with the horizontal axis type wind turbine, the area for vertically receiving the wind pressure load can be obtained. The size can be reduced to reduce the wind pressure load on the upper part of the generator tower, and the structure of the tower can be simplified.

Further, the invention of a wind turbine generator according to claim 6 is a generator in which a rotor is installed in a vertical position on a foundation part, and a blade shaft arranged on the upper part of the generator, the blade shaft of the generator rotating. A wind turbine generator comprising a vertical shaft type wind turbine coupled to a subsidiary shaft and a support member which is built in the foundation part and rotatably supports an upper end portion of the vertical shaft type wind turbine.

Further, the invention of a wind turbine generator according to claim 7 is characterized in that a guide blade for guiding the wind flow to the wind turbine is provided on a side portion of the vertical axis wind turbine. Further, in the invention of the wind turbine generator according to claim 8, the vertical axis type wind turbine has a turbine type structure that rotates by a flow of air parallel to the wind turbine axis, and the turbine type wind turbine is surrounded by a wind tunnel. It is characterized by

According to the inventions of claims 6 to 8, the wind turbine 30 can be rotated irrespective of the direction in which the wind blows, and since the vertical axis type wind turbine is adopted, the horizontal axis type propeller type wind turbine is used. Bevel gear 25 for changing the rotation direction compared to
Is unnecessary. Moreover, since the multi-pole generator is fixed to the foundation, the structure of the entire wind turbine generator can be simplified, and since there is no gear mechanism, there is little energy loss and noise, and there are advantages that failure does not occur easily. is there.

Further, the invention of a wind turbine generator according to claim 9 is characterized in that the generator is an outer rotor type. According to the present invention, since the rotor of the generator is the outer rotor type, the moment of inertia is increased, and a large flywheel effect can be provided.
It is possible to suppress changes in output due to wind fluctuations.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a wind turbine generator according to the present invention will be described below with reference to the drawings. In addition,
Throughout the drawings, the same parts are denoted by the same reference numerals to avoid redundant description.

(First Embodiment) FIGS. 1 and 2 are views showing a first embodiment of the present invention. In particular, FIG. 1 is a view showing an overview of a wind turbine generator 10 according to the present embodiment, (a) is a plan view of a generator, and (b) is a side sectional view of a generator mounting portion. FIG. 2 is an enlarged view of the generator part.

In FIG. 1, the foundation portion, that is, the ground portion GL
On the top of a tower 2 built vertically from
The generator 12 is installed so that the axis line of 2-3 is in the vertical position, that is, the axis line of the tower 2 is aligned. A bevel gear 13 is installed on the top of the generator 12, and the rotor shaft 12-3 is directly connected to the bevel gear 13.

On the other hand, a horizontal axis type wind turbine, for example, a propeller type wind turbine 4 is installed in a direction orthogonal to the axis of the top of the tower 2.
The wind turbine shaft 4-1 is directly connected to the bevel gear 13. Thereby, the rotational power of the horizontal shaft type wind turbine 4 is transmitted to the bevel gear 13 via the wind turbine shaft 4-1 and further, the bevel gear 13
Is transmitted to the rotor shaft 12-3 of the generator 12 to rotate the rotor 12-2.

The stator 12-1 of the generator 12 is the rotor 1
2-2 generate | occur | produces the alternating current electric power of the frequency according to the rotation speed, and this electric power system 10 through the frequency converter 9-4 which consists of the converter and inverter installed in the ground part.
Converted to the power of the system frequency synchronized with the
-3 to the distribution line 11 of the power system 10.

Reference numeral 14 is a gear portion cover for covering the bevel gear 13, and 15 is a generator cover for covering the generator 12, and these covers are formed in a shape so that the wind pressure load against the wind is reduced. . For example, the generator cover 15 is formed in an elliptical or streamlined cross-sectional shape so that the wind pressure load is reduced with respect to wind in all directions.

Next, the mounting state of the generator 12 will be described in detail with reference to FIG. A disc-shaped generator support frame 16 is installed on the top of the tower 2. This generator support frame 16
Are brackets 17, 18 at the center and at the circumference, respectively.
Is provided to support the annular stator 12-1 via the bracket 18 and to fix the thrust bearing 19 via the bracket 17. The rotor 12-2 has a lower end rotatably supported by a thrust bearing 19 and an intermediate part supported by a guide bearing 20.

The generator 12 is a permanent magnet type induction generator in which magnetic poles are formed on the rotor 12-2 by the permanent magnets 12-4, as in FIG. 12 described above, and the stator 1 is rotated by rotating the magnetic poles.
An AC voltage is induced in the winding 2-1.

Normally, the rotation speed of the propeller-type wind turbine 4 is a low speed of about several tens of rotations per minute, so the generator stator 12
The rotor 12-2 of the generator 12 has a multi-pole configuration so that the frequency of the AC power induced from -1 does not become too low,
For example, permanent magnets are attached so that the number of poles is about 20 to 100.

As described above, according to this embodiment,
The generator is arranged so that the rotor shaft is in the vertical position, and the power of the horizontal axis wind turbine 4 is supplied to the rotor 12 of the generator by the bevel gear 13.
Since it is configured to transmit to -2, even if the outer diameter of the generator is increased to increase the number of poles, the area receiving the wind can be reduced, and the wind pressure load of the generator can be reduced.

As a result, since the structure of the tower 2 can be simplified, the size and mass of the members constituting the tower 2 can be reduced, and the transportation and installation costs can be reduced. Therefore, the construction cost of the entire wind turbine generator can be reduced.

In this embodiment, a bevel gear is adopted as a means for transmitting the power of the wind turbine in the horizontal position to the generator rotor shaft in the vertical position. However, instead of the bevel gear, a power transmitting means such as a pulley and a belt is used. May be adopted.

(Second Embodiment) FIG. 3 is a block diagram showing a second embodiment. In the above-described first embodiment, the multipole generator 12 having a large outer dimension is installed on the top of the tower 2, so that the blades 4-2 of the wind turbine 4 do not touch the generator cover 15, The axial length of the wind turbine shaft 4-1 in the horizontal position is increased. Therefore, there is a concern that the force exerted on the bearing mechanism (not shown) of the wind turbine shaft 4-1 will increase and the bearing itself will also increase.

In the present embodiment, in order to prevent this, as shown in FIG. 3, the installation position of the generator 12 is set to the blades 4-2 of the wind turbine 4.
The wind turbine shaft 4-1 is shortened by installing it on the tower 2 by lowering it to an intermediate position where it does not hit. However, in the case of the present embodiment, it is necessary to lengthen the rotor shaft 12-3, but since the number of rotations of the rotor shaft 12-3 is about several tens of revolutions per minute, the calculation of the resonance point is included. The design of the rotor shaft 12-3 is not complicated.

As described above, according to this embodiment, the length of the wind turbine shaft 4-1 in the lateral position can be made shorter than that in the first embodiment, and the load applied to the bearing mechanism of the wind turbine shaft 9 can be reduced. Can be made smaller.

(Third Embodiment) FIG. 4 shows a third embodiment of the present invention.
It is a block diagram which shows the embodiment of FIG. In the present embodiment, as shown in FIG. 4, the generator 12 is installed on the ground portion GL, the wind pressure applied to the generator cover 15 is not applied to the tower 2, the tower structure is simplified, and the cost of the structure is reduced. This is intended to be reduced. The load of the tower 2 itself is supported by the upper portion of the generator 12 or by a supporting device (not shown).

According to the present embodiment, by placing the generator 12 on the ground portion GL, the tower 2 does not have to have a structure for supporting the gravity load and the wind pressure load of the generator, thus reducing the cost of the generator. Can be expected. Further, in the case of this embodiment, since the maintenance work of the generator 12 can be performed on the ground, the work can be performed easily as compared with the first embodiment in which the work is performed at a high place.

(Fourth Embodiment) FIG. 5 shows a fourth embodiment of the present invention.
It is a block diagram which shows the embodiment of FIG. In the present embodiment, a Savonius vertical axis type wind turbine 21 is used instead of the horizontal axis type propeller type wind turbine 4 used in the above-described embodiment of the invention.

As shown in FIG. 5, this Savonius-type vertical wind turbine 21 has blades 21 having an arc-shaped (tomoe-shaped) cross section.
-1 is attached to the wind turbine shaft 21-2 by axisymmetrically two pieces,
Generator 1 in which the lower end of this wind turbine shaft 21-2 is installed above the ground
It is directly coupled to the second rotor shaft 12-3. In addition, 22 is a windmill support member, and is comprised from the support | pillar 22-1 and the upper frame 22-2 installed vertically from the ground part. Reference numeral 23 is a bearing fixed to the upper frame 22-2, and rotatably supports the upper end of the wind turbine shaft 21-2. Reference numeral 24 is a guide bearing and thrust bearing that supports the rotor shaft 12-3.

According to the present embodiment, there is an advantage that the wind turbine 21 can be rotated regardless of the wind blowing direction.
Further, since the vertical axis type wind turbine is adopted, the bevel gear 13 for changing the rotation direction is not required as compared with the horizontal axis type propeller type wind turbine. Moreover, since the multi-pole generator is fixed on the ground, the structure of the entire wind turbine generator can be simplified, and since there is no gear mechanism, there is less energy loss and noise,
There is an advantage that failure does not occur easily.

(Fifth Embodiment) FIG. 6 shows a fifth embodiment of the present invention.
It is a block diagram which shows the embodiment of FIG. This embodiment is an improvement of the fourth embodiment, and has a plurality of locations around a vertical wind turbine 21 'having more blades than the vertical wind turbine described in the fourth embodiment. For example, the guide blades 25 are fixed at four locations, and the guide blades guide (rectify) the wind so that the vertical axis wind turbine 21 'can be easily rotated. In addition, 26-1 and 26-2 are the wind tunnels provided in the upper and lower portions of the wind turbine.

In this embodiment, the vertical axis wind turbine 21 'can be rotated regardless of the direction of the wind, and the wind is collected by the rectifying action of the guide blades 25 so that the vertical axis wind turbine 21' can be rotated. Since it corresponds to this, it can be expected to rotate the wind turbine more efficiently. Further, also in the present embodiment, the same effects as those of the third and fourth embodiments can be achieved by installing the generator 12 on the ground.

(Sixth Embodiment) FIG. 7 shows a sixth embodiment of the present invention.
It is a block diagram which shows the embodiment of FIG. In the present embodiment, the generator 12 is provided approximately at the center of the wind tunnel body 27 having the shape of a deep dish.
Is installed in a vertical position, and a vertical axis type wind turbine 28 is installed on the upper part of the generator 12 to directly connect the two. The vertical axis wind turbine 28 is an axial turbine type, and the vertical axis wind turbine 28 is
The blade is surrounded by an annular wind tunnel body 29, and the upper part of the vertical wind turbine 28 is covered by an inverted cone wind tunnel body 30.

The wind 31 has the wind tunnel bodies 29 and 30 as indicated by arrows.
It is guided to the upper part of the vertical shaft type wind turbine 28 from the passage between them, and is discharged through the passage between the lower wind tunnel bodies 27 and 29 while driving the axial flow turbine type wind turbine. Reference numeral 32 is a straightening plate provided between the wind tunnel body 29 and the inverted-cone type wind tunnel body 30.

According to the present embodiment, the wind 31 blown from all directions flows toward the vertical axis type wind turbine 28 in the central portion, so that the efficiency of the wind turbine 28 can be improved. Also in the present embodiment, the effects of not using the bevel gear and installing the generator on the ground are similar to those of the fourth and fifth embodiments.

(Seventh Embodiment) FIG. 8 shows a seventh embodiment of the present invention.
It is a block diagram which shows the embodiment of FIG. The present embodiment is characterized in that an outer rotor type generator is adopted as the generator 33, and the wind turbine combined with this generator 33 may be either a horizontal axis type or a vertical axis type.

In FIG. 8, the generator 33 comprises a cylindrical stator 33-1 and a ring-shaped rotor 33-1 concentrically arranged outside the cylindrical stator 33-1. ,
Further, the rotor 33-2 is provided with the permanent magnet 3 in the circumferential direction of the inner hole.
A plurality of 3-4 are arranged to form a multipolar structure.

In the case of this embodiment, in order to support the thrust of the rotor 33-2, the support frame 34 is integrally fixed to the upper side surface of the rotor 33-2, while the rotor shaft 33-3 is fixed to the rotor shaft 33-3. The through-fixed flange 35 is integrally fixed to the support frame 34. As a result, the rotor 33-2, the support frame 34, the flange 35, and the rotor shaft 33-3 are integrally fixed. The thrust bearing 19 is attached to the lower end of the rotor shaft 33-3.
Is installed, the thrust of the entire rotor is supported by the thrust bearing 19. In addition, 17 and 18 are brackets similar to FIG.

In the case of this embodiment, since the outer rotor type is used, the moment of inertia of the generator rotor is increased and the flywheel effect is provided.
It is possible to provide an effect of suppressing a change in output due to a change in wind.

Since the generator 33 can be installed on the ground, even if the outer diameter and weight of the generator 33 are increased,
It does not affect the support structure of the generator. For this reason,
By increasing the number of permanent magnet magnetic poles attached to the rotor, it is easy to increase the AC output frequency even with a generator with a slow rotation speed, which reduces the switching element capacity of the frequency converter and lowers the cost. Is possible.

[0052]

As described above, the permanent magnet type induction generator having the multi-pole structure is arranged in the vertical position, and the power of the horizontal axis type wind turbine is rotated orthogonally via the bevel gears. In the case of the invention configured to be transmitted to the child, the wind pressure load can be suppressed low even if the outer diameter of the generator is increased. As a result, the construction cost of the tower is suppressed, and the construction cost of the entire wind turbine generator can be suppressed.

Further, in the case of the invention in which a permanent magnet type induction generator having a multi-pole structure is installed in a vertical position at a foundation and a vertical axis type wind turbine is directly connected to this generator, the generator support structure is Therefore, it is easy to increase the outer diameter of the permanent magnet generator and increase the number of rotor magnetic poles.

As a result, it is possible to obtain a generator that can reduce the output fluctuation due to the inertia of the rotor and can sufficiently increase the frequency of the AC output to the frequency converter even in a low-speed rotating wind turbine.

[Brief description of drawings]

1A and 1B are external views showing a first embodiment of the present invention, in which FIG. 1A is an external view and FIG. 1B is a partial sectional view.

FIG. 2 is an enlarged view showing a generator unit according to the first embodiment.

FIG. 3 is a diagram showing a second embodiment of the present invention,
(A) is an outline drawing, (b) is a partial sectional view.

FIG. 4 is a diagram showing a third embodiment of the present invention,
(A) is an outline drawing, (b) is a partial sectional view.

FIG. 5 is a diagram showing a fourth embodiment of the present invention,
(A) is an outline drawing, (b) is a partial sectional view.

FIG. 6 is a diagram showing a fifth embodiment of the present invention,
(A) is a plan view and (b) is a front sectional view.

FIG. 7 is a sectional view showing a sixth embodiment of the present invention.

FIG. 8 is a diagram showing a seventh embodiment of the present invention,
(A) is a top view of a generator, (b) is sectional drawing of a generator.

9A and 9B are configuration diagrams of a conventional wind turbine generator, in which FIG. 9A is an external view and FIG. 9B is a partial sectional view.

FIG. 10 is a connection diagram showing an example of an output circuit of a conventional induction generator type wind turbine generator.

FIG. 11 is a connection diagram showing another example of the output circuit of the conventional induction generator type wind turbine generator.

FIG. 12 is a connection diagram showing an example of an output circuit of another conventional induction generator.

13A and 13B are configuration diagrams of a conventional permanent magnet type wind turbine generator, in which FIG. 13A is an external view and FIG. 13B is a partial sectional view.

[Explanation of symbols]

1 ... Wind power generator, 2 ... Tower, 3 ... Nacelle, 4 ... Windmill, 5 ... Speed-up gear, 6 ... Induction generator, 7 ... Cooling fan,
8 ... Power cable, 9 ... Power converter, 9-1 ... Reactor, 9-2 ... Switch, 9-3 ... Transformer, 9-4 ... Static frequency converter, 10 ... Power system, 11 ... Distribution line, 1
2 ... Multipole generator, 12-1 ... Stator, 12-2 ... Rotor, 12-3 ... Rotor shaft, 12-4 ... Permanent magnet, 13 ...
Bevel gear, 14 ... Gear part cover, 15 ... Generator cover,
16 ... Generator support frame, 17 ... Bracket, 18 ... Bracket, 19 ... Thrust bearing, 20 ... Guide bearing, 21 ...
Vertical axis type wind turbine, 21-1 ... Blade, 21-2 ... Wind turbine shaft, 23
… Guide bearing, 24… Guide bearing and thrust bearing, 25
… Guide vanes, 26… Wind tunnel, 26-1… Upper wind tunnel, 2
6-2 ... Lower wind tunnel, 27 ... Pan-shaped wind tunnel, 28 ... Vertical wind turbine, 29 ... Annular wind tunnel, 30 ... Inverted cone wind tunnel, 3
1 ... Wind flow, 32 ... Rectifier plate, 33 ... Outer rotor type generator, 33-1 ... Stator, 33-2 ... Rotor, 33-
3 ... Rotor shaft, 33-4 ... Permanent magnet magnetic pole, 34 ... Support frame, 35 ... Flange.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02K 21/22 H02K 21/22 AF term (reference) 3H078 AA02 AA07 AA26 BB06 BB19 BB20 BB21 CC01 CC13 CC44 CC47 5H607 BB02 BB07 BB14 BB17 BB25 CC09 DD03 EE31 EE36 FF26 GG02 5H621 JK15 JK19

Claims (9)

[Claims] 1. A tower built on a foundation, a horizontal axis wind turbine installed on the upper part of the tower, and any of the towers so that the wind turbine axis and the rotor axis of the horizontal axis wind turbine intersect with each other. A wind power generator comprising a power generator installed at the position and power transmission means for connecting the wind turbine shaft and the generator rotor shaft. 2. The wind turbine generator according to claim 1, wherein the generator is a multi-pole generator having permanent magnets as field poles. 3. The wind turbine generator according to claim 1, wherein the power transmission means is a bevel gear. 4. The wind turbine generator according to claim 1, wherein the generator is installed at a midpoint of a tower. 5. The wind turbine generator according to claim 1, wherein the generator is installed in a foundation portion of a tower. 6. A generator having a rotor in a vertical position installed on a foundation, a vertical wind turbine arranged at an upper portion of the generator and having a wind turbine shaft coupled to a rotor shaft of the generator, A wind power generator comprising a support member which is built in a foundation portion and rotatably supports the upper end portion of the vertical axis type wind turbine. 7. The wind turbine generator according to claim 6, wherein a guide blade for guiding the wind flow to the wind turbine is provided on a side portion of the vertical axis wind turbine. 8. The vertical axis type wind turbine has a turbine type structure which rotates by a flow of air parallel to the wind turbine axis, and the turbine type wind turbine is surrounded by a wind tunnel. The wind turbine generator according to claim 7. 9. The wind turbine generator according to claim 1, wherein the generator is an outer rotor type.